X0609 4 2026-05-19 0 0001758730 Tradeweb Markets Inc. TW 0001232995 BERNS STEVEN false TRADEWEB MARKETS INC. 245 PARK AVENUE NEW YORK NY 10167 1 0 0 0 0 Class A common stock 2026-05-19 4 A 0 1645 0 A 5309 D The reported transaction is an award of restricted stock units ("RSUs") in respect of the issuer's Class A common stock (the "Class A Common Stock"). Subject to the reporting person's continued service as a director of the issuer through the vesting date, these RSUs are scheduled to vest on May 19, 2027 and, absent an election to defer settlement, settle in Class A Common Stock within 30 days thereafter, or may be pro-rated in accordance with the issuer's Non-Employee Director Compensation Policy, as disclosed in the issuer's Proxy Statement on DEF 14A filed with the SEC on March 26, 2026. In accordance with the terms of the issuer's Non-employee Directors Deferred Compensation Plan (the "Deferred Compensation Plan"), the reporting person has previously elected to defer the settlement of the RSUs upon vesting, and will instead receive an equal number of phantom shares that will settle in shares of the Class A Common Stock in accordance with the reporting person's election and the terms of the Deferred Compensation Plan. This amount includes 1,645 unvested RSUs in respect of the Class A Common Stock that are scheduled to vest on May 19, 2027, subject to the reporting person's continued service as a director through the applicable vesting date or as may be pro-rated pursuant to the terms set forth in footnote 1 to this Form 4. /s/ Douglas Friedman, Attorney-in-Fact for Steven Berns 2026-05-20